NAME

Compras::UA - Client API to Brazil bid system (http://compras.dados.gov.br/)

INSTALL

To install it you will need perl (5.028 or later) and cpanm

$ git clone https://github.com/marcoarthur/compras-gov.git
$ cd compras-gov
$ cpanm --installdeps .

We provide a script to try out some searches

$ ./script/search.pl [1-4] # each number is a search 

SYNOPSIS

use Compras::UA;
use DDP;
my $ua = Compras::UA->new( { module => 'licitacoes', params => { valor_inicial => 100000 } } );
my $data = $ua->get_data->{results};
p $data; # will print a Collection of Compras::Model::Contracts

DESCRIPTION

The goal is to handle all models as provided here

When constructing Compras::UA we pass to the constructor the terms of our search. We list these terms, examplifing it, bellow:

• module:

  The entitie we want data, eg, 'licitacoes' details

• method:

  This is the actual data the module can provide, eg, 'orgaos' details

• params:

  Any search parameters for the method invoked, eg, 'nome' for 'orgaos'

• format:

  The format of response, by default json. Acceptable values are: html, csv.

So the search bellow represents and returns all institutions named 'TRIBUNAL' that have bids listed.

my $ua = Compras::UA->new( { module => 'licitacoes',  method => 'orgaos', params => { nome => 'TRIBUNAL' } } );
try {
    my $res = $ua->get_data;
    $res->{results}->each( sub { $_->nome } );
} catch ($e) {
    warn "Error $e";
}

The results are a collection of Models determined by the module parameter. Models holds the data that is listed in the documentation for, eg, the above search returns Compras::Model::Institutions that contains accessors for each listed response the server documents, eg in this case:

$ele->$_ for qw( ativo codigo codigo_siorg codigo_tipo_adm codigo_tipo_esfera codigo_tipo_poder nome)
# prints value of all model public accessor

You can get a list on Server doc or looking at the Models classes.

get_data

my $ret = $ua->get_data;
$ret->{results}->each( sub ($e, $n) { say join ' ', @{ $e->to_arrayref} } );

Returns hash reference containing data of the search. It runs many searches if the results cannot be completed in only one requests. Server handles at most 500 records per request. Those will be concurrent requests. Under results key is the array reference with the data.

url

say $ua->url;

Returns the url that was requested.

LICENSE

Copyright (C) Marco Arthur.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR

Marco Arthur arthurpbs@gmail.com